Power apparatus for removing skull from ladles.



No. 663,946. Patented Dec, l8, I900. J. A. WALDBURGER &. W. J. SMITH. POWER APPARATUS FOR REMOVING SKULL FROM LADLES.

(Application filed Apr. 5, 1900.)

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THE "cams PEIERS c0.. Pno'muma. wAsmnaYou. 0 cv N0. 563,946. Patented D80. l3, I900. J. A. WALDBURGER & W. J. SMITH. POWER APPARATUS FOR REMOVING SKULL FROM LADLES.

(Application filed. Apr. 5, 1900.)

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(No Model.)

No. 663,946. Patented Dec. I8, 1900. J. A. WALDBURGER & W. J. SMITH. POWER APPARATUS FOR REMOVING SKULL FROM LADLES.

(Application fiI ed Apr. 5, 1900.) (No Model. 3 Sheets-Sheet 3.

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UNITED STATES PATENT @rricn'.

JOHN A. WALDBURGER AND WILLIAM J. SMITH, OF MOKEESPORT,

PENNSYLVANIA.

POWER APPARATUS FOR REMOVING SKULL FROM LADLIES.

SPECIFICATION forming part of Letters Patent No. 663,946, dated December 18, 1900.

Application filed April 5, 1900. Serial No. 11,650. (No model.)

To all whon'z, it may concern.-

Be it known that we, JOHN A. WALDBURGER and WILLIAM J. SMITH, citizens of the United States, residing at McKeesport, in the county of Allegheny and State of Pennsylvania, have The purposes of our invention, generally stated, are to devise simple and powerful mechanism for removing skull from ladles without materially disturbing the lining of said ladle.

Our apparatus is adapted for use with all kinds of ladles from which the skull has to be removed,although it is most satisfactory when employed with a ladle such as shown in an application executed on an even date here- .with filed by us, Serial No. 11,649, which ladle has a ring of metallic lining atthe top portion thereof; but we do not restrict the claims of the present application to use with such ladle. The molten iron adheres to the same in the form of skull, and more particularly at or near the line of the level of the liquid and also at the bottom of the ladle. The usual way of removing skull is to tip the ladle violently and jar the skull out. If this is not successful, the skull must be removed by hammering it clear. This dislodgment of the skull in the manner just described involves frequent removal of the brick to clean the ladle of the chilled iron. The skull which forms gradually in the bottom of the ladle cannot be removed without removing the whole lining of the ladle. This temporarily puts the ladle out of use, as well as involving a Very considerable expense of labor and materials for relinquishing the same. Our invention seeks to avoid these losses and delays and practically renders the ladle continuous in use, as the portion requiring relining is only an inconsiderable fraction of the whole surface of the ladle.

Figs. I and 11 show our invention as practiced with the ladle supported on special framework. Any suitable frame may be employed; but in the figures just referred to we have shown a frame consisting of four cornerposts 2 2, supporting two I-beams 3 3, upon which rests the ladle,as hereinafter described. at is a power-cylinder bolted to and supported upon two I-beams 5 5, which rest upon the sill 6 6. The upper end of the cylinder 4 is substantially secured to the cross-beams 7 7. 8 is the ram for said cylinder, which is located so as to be in line with the center of the ladle. The ladle, as illustrated, consists of a metallic shell 10, a brick or equivalent lining 11, and an inner lining 12, of loam. A hole is made in the bottom of the shell, in which is inserted a plug 13, provided with a flange 13, extending around the hole. This metal plate is covered over with the brick or other lining in such a way as to secure against leakage,and the lining is so arranged that when the ram or plunger is pushed up through the bottom of the ladle only that portion of the lining is removed that lies directly on top of the plug,

"which portion of lining covers so small an area that it can be speedily replaced, while the plug 13 can be reused. 14 1 1 are trunnions on the ladle which are adapted to rest in bearings 15 15, secured to the I-beams 3 3. 16 16 are bearing elbows or lugs which rest upon bearing-blocks 17 17, also secured at the top of the I-beams 3 3. 18 18 are the usual lifting-lugs on the ladle, and 19 19 are links pivoted to the upper edge of the I-beam 3 3 and provided with hooked ends adapted to drop over the upper edge of the ladle. 20 represents the strata of skull which. has accumulated on the bottom of the ladle. Inthe actual working of ladles this skull varies in thickness from that here shown up to enough to almost fill the ladle. v

The mode of working our apparatus is as follows: The ladle containing the skull is swung over by a crane and set down upon the framework, as indicated in the drawings. The links 19 19 are then swung over the edge of the ladle. Power is applied through the cylinder 4, and the ram 8 pushes out plug 13 In Fig. III we have shown the same principleemployed in removing the skull when the ladle is set upon a ladle-car. 21 is the ladleear upon the track 22, which runs over a pit 23. Located in said pit 23 is a cylinder 4, having ram 8. The. ladle is adjusted centrally over said ram 8, and the swinging links 24 24, pivoted in the walls 25 25 of the pit, are hooked into the lugs 26 26 of the ladle. Power is then applied to the ram 8 and the skull dislodged, as before described.

Having described ourinvention, We claim- 1. The combination of a ladle having a metallic shell with an opening in its bottom; a plug in said opening and a lining of brick above said plug; a frame upon which said ladle is supported; hooks attached to said frame and adapted to engage the ladle and an ejecting power-cylinder and ram in alinement with the hole in the bottom of the ladle.

2. The combination of a ladle having a metallic shell; a frame upon which said ladle is supported; means for holding said ladle against movement during the ejection of the skull; a hole in the bottom of the shell of said ladle; a plug for said hole and a lining of brick above said plug and an ejecting power-cylinder and ram in alinement with the hole in the bottom of the ladle.

3. The combination of a ladle having a me tallic shell with an opening in its bottom; a plug for said hole; a lining for the ladle covering said plug; trunnions for said ladle and bearing-lugs on said ladle.

4:- The combinaiion of a ladle having a metallic shell with an opening in its bottom; a plug in said opening and a lining of brick above said plug; a frame upon which said ladle issupported; means for attaching said ladle to said frame and an ejecting powercylinder and ram located beneath said ladle.

5. The combination of a railroad-track; a ladle-car; a ladle mounted thereon having a metallic shell with an opening in its bottom; a plug in said opening and a lining of brick above said plug and an ejecting-cylinder and ram located between the rails.

6. The combination of a railroad-track; a ladle-car; a ladle mounted thereon having a metallic shell with an opening in its bottom; a plug in said opening and a lining of brick above said plug; a pit located on the track and an ejecting-cylinder and ram in said pit.

7. A ladle composed of a metallic shell, an opening in its bottom, a plugin said opening and a lining covering said plug.

Signed at Pittsburg,Pennsylvania,this 24th day of March, 1900. I JOHN A. WALDBURGER.

WILLIAM J. SMITH.

Witnesses:

WM. L. PIERCE, L. D. IAMS. 

